Unprecedented Bistability in Spin-Crossover Solids Based on the Retroaction of the High Spin Low-Spin Interface with the Crystal Bending

Journal of the American Chemical Society
Miguel Páez-EspejoKamel Boukheddaden

Abstract

There has been in recent years a continuous increase in spatiotemporal investigations of the dynamics of the first-order transitions in spin-crossover (SCO) solids. In single crystals, this phenomenon proceeds via a single domain nucleation and propagation, characterized in some systems with the presence of two equivalent and symmetric interface orientations, between the high-spin (HS) and low-spin (LS) phases, due to the anisotropic structural change of the unit cell at the transition. The present investigations bring an experimental evidence of the reversible driving of the translational and rotational degrees of freedom of the HS-LS interface. In addition to its rectilinear displacement, the interface rotates between two stable angles, 60o and 120o. It is demonstrated that while the translation motion is accompanied by a crystal's length change, the interface rotation is controlled by the crystal's bending. These results are well-explained in the frame of an elastic theoretical description in which the effect of the crystal bending, on the stability of the interface's orientation, is simulated by applying a moment of forces on the crystal. It is found that the interface orientation becomes unstable beyond a threshold load va...Continue Reading

References

Mar 1, 1988·Physical Review. B, Condensed Matter·I A CampbellR Botet
Aug 8, 2009·Physical Review Letters·Cristian EnachescuAndreas Hauser
Jan 22, 2010·The Journal of Physical Chemistry. B·Christian ChongFrançois Varret
Feb 23, 2012·Scientific Reports·Masamichi NishinoFrançois Varret
Oct 4, 2012·Physical Review Letters·Salma BedouiAzzedine Bousseksou
Nov 14, 2012·Chemical Society Reviews·Eugenio Coronado, Guillermo Mínguez Espallargas
Feb 6, 2016·Sensors·Catalin-Maricel JureschiYann Garcia
Feb 11, 2016·Journal of the American Chemical Society·Miguel Paez-EspejoKamel Boukheddaden
May 11, 2017·Angewandte Chemie·Maria D Manrique-JuarezAzzedine Bousseksou
Nov 8, 2017·Chemical Society Reviews·Guillermo Mínguez Espallargas, Eugenio Coronado

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